Effect of ouabain treatment on cell proliferation.

<p>Approximately 10⁴ cells were seeded into microwell plates and allowed to grow over 4 days in the presence of vehicle (control, open bars) or various concentrations (1 nM-100 μM) of ouabain. Cells were harvested and growth was determined by the MTT assay. Histobars represent means ± SEM of at least 3 independent determinations. Asterisk denotes significant difference from control with p < 0.05.